In the next update.
You cant
you can't ):
By crafting 4 sand and 5 gunpowder with a crafting table
They should have updated it by now to have the Flint and steel
tap the tnt with flint and steel
On Minecraft Pocket Edition, it is impossible to detonate TNT in creative mode. In survival mode, you have to obtain a flint (from mining gravel) and iron (from iron ore) and create flint and steel. You then have to create the TNT and lay it down. Then just tap the TNT with the flint and steel.
There's currently no way.
on creative you put a redstone torch,lever or presshure plate
Flint and Steel in Survival Mode. Can't in creative.
The ID (code) for TNT in Minecraft is 46.
There is no way YET . They added tnt but there is still no flint and steel or redstone to light it. They might add that in a later version. Minecraft pocket edition is still pretty behind pc and even xbox 360
You can set TNT off in Minecraft Beta by clicking it, or by triggering it with redstone.